Question

我需要定期从Web服务器读取XML文件。到目前为止，我尝试了两段具有相同结果的代码......

代码1

  Dim xRequest As WebRequest = WebRequest.Create(xSourceUrl)
  xRequest.Proxy = New System.Net.WebProxy("ourProxy:port", True)
  xRequest.Credentials = System.Net.CredentialCache.DefaultCredentials

  Dim xResponse As WebResponse = xRequest.GetResponse()
  Dim xDataStream As Stream = xResponse.GetResponseStream()
  Dim xReader As New StreamReader(xDataStream)
  Dim xResponseFromServer As String = xReader.ReadToEnd()

  xReader.Close()
  xResponse.Close()

代码2

 Dim xWebClient As New System.Net.WebClient()
 xWebClient.Proxy = New System.Net.WebProxy("ourProxy:port", True)
 xWebClient.Proxy.Credentials = System.Net.CredentialCache.DefaultCredentials
 xWebClient.DownloadFile(xSourceUrl, "D:\Desktop\file.txt")

我要下载的文件是网页查询的结果，例如

http://www.ceps.cz/_layouts/Ceps/_Pages/GraphData.aspx?mode=xml&from=6.5.2014%200:00:00&to=6.5.2014%2023:59:59&hasinterval=False&sol=3&lang=CZE&agr=HR&fnc=AVG&ver=RT&para1=APG&

当我将此地址粘贴到Chrome时，

正常下载。但是这两段代码都得到了一个不同的XML，它包含一些“Error”标签，即我没有得到我想要的东西。

Answer 1

您的链接位于sharepoint服务器上，根据您获取的“错误”html的内容。请查看以下链接：

您可以在此处获取SharePoint客户端库：

SharePoint Server 2013 Client Components SDK @ Microsoft

从Web检索XML文件

1 个答案: